CH. 17 & 18 Study Guide Flashcards
What is Ozone in the Stratosphere considered?
Good, it protects against UV Rays
What happens as you go up in the atmosphere?
Density/Pressure decreases
What is responsible for ozone depletion?
CFC’s; useful as refrigerants, fire extinguishers, propellants of aerosol spray cans, cleaners for electronics, etc
What do thermal inversions do?
Trap pollutants (especially in cities surrounded by mountains)
Define: Coriolis Effect
North-south deflection of air currents of the convective cells resulting in curving global wind patterns called the doldrums, trade winds, and westerlies
Convective currents
contribute to climatic patterns
Hadley cells
convective cells near the equator
Surface air warms, rises, and expands
-Causing heavy rainfall near the equator
-Giving rise to tropical rainforests
Polar cells
convective cells nearest to the poles
lift air and create precipitation at 60 degrees latitude north and south
Conditions at the poles are dry
Ferrel cells
convective cells located between 30 and 60 degrees north and south latitude
- lift air and create precipitation at 60 degrees latitude north and south
What is the function of the IPCC?
It looks for evidence and impact of Climate Change
What is the composition of gases in the atmosphere?
Nitrogen- 78% Oxygen- 21% other gases- 11%?
List some natural sources of air pollution.
Volcanic eruptions, fires, winds/dust storm
List the sources of indoor air pollutants.
Sources: Insecticides, cleaning fluids, plastics, and chemically treated wood
List the effects of indoor air pollutants.
Effects: health risks like premature death, allergies, sinus infections, cataracts, asthma, emphysema, and heart disease.
List the sources and effects of Carbon Monoxide:
Source- incomplete combustion of fuel:
Vehicles, industrial processes, combustion of waste, and residential wood burning
Effects- risk to humans and animals because it can bind irreversibly to hemoglobin in red blood cells, preventing hemoglobin from binding with Oxygen